The Compensation Principle of Reactive Power Compensation Capacitors and Why On-Site Compensation is Adopted? 1

The compensation principle of power factor correction capacitors primarily leverages the characteristics of capacitors in AC circuits by supplying reactive power to enhance power quality and improve the efficiency of the power system. In power systems, particularly in industrial loads, there are numerous inductive loads such as motors and transformers (e.g., ADS8412IBPFB), which consume reactive power and lead to a decline in the system's power factor. A low power factor results in various adverse effects, including increased line losses, reduced transmission efficiency, and higher electricity costs. Therefore, employing power factor correction technology to improve the power factor and minimize reactive power transmission is a crucial method for enhancing energy utilization efficiency and conserving electricity.  diode

Principle of Reactive Power Compensation by Capacitors

The fundamental principle of reactive power compensation is to use the capacitive reactive power provided by capacitors to offset the inductive reactive power in the system, thereby achieving the purpose of compensation. In AC circuits, capacitors consume negative reactive power, while inductive loads consume positive reactive power. By appropriately adding capacitors to the system, these two types of reactive power can be partially offset, reducing the total reactive power demand of the system and improving the power factor. diode